Welwyn Hatfield planning applications
SiteLens tracks and classifies every planning application submitted to Welwyn Hatfield Borough Council, updated daily. Welwyn Hatfield Borough Council received 137 planning applications in the last 90 days, 3 of them major schemes. 88% of the applications it decided were approved, with a median decision time of 56 days.
Search Welwyn Hatfield planning applications
Filter by type, value, date and status. The council's own register is on the official Welwyn Hatfield Borough Council planning portal.
Recent applications in Welwyn Hatfield
See all →Majors and higher-value work first, tree works, condition discharges and adverts last.
22 The Avenue Welwyn AL6 0PP
Nine-unit residential scheme, full permission granted. One detached house and eight flats across two blocks, following demolition. Groundworks, structural frame, drainage and fit-out drive material procurement.
DemolitionGroundworksStructural frame
73 Mymms Drive Brookmans Park AL9 7AA
Single dwelling replacement, Brookmans Park. Demolishes an existing house and erects one new dwelling at full application stage. Groundworks, structural frame, brickwork and roofing dominate; the 0.11 hectare plot and local market values point to a substantial new home.
DemolitionGroundworksStructural frame
Thunderbridge Yard Bulls Lane Hatfield AL9 7BB
4-pitch Gypsy/Traveller site with dayrooms, full permission. Change of use with static/touring caravans per pitch plus two dayroom buildings. Site development, hard landscaping, and utility connections for mobile accommodation.
GroundworksHard landscapingDrainage
1 Heay Fields Welwyn Garden City AL7 2EH
Change of use from amenity land to residential with wall alteration and extension. Conversion of general amenity land involving structural wall works and extension. Groundworks, masonry and extension trades secure opportunity on a residential conversion in a strong south-east market.
GroundworksBrickworkStructural repair
108 Tolmers Road Cuffley Potters Bar EN6 4JR
Single replacement dwelling, full permission. Demolition and new-build construction on residential plot. Groundworks, structural frame, brickwork, roofing and MEP trades all involved.
DemolitionGroundworksStructural frame
Land North of 58 Bell Lane Brookmans Park AL9 7AY
Single dwelling, permission in principle granted. New-build house at outline stage requiring detailed design approval. Groundworks, structural frame, roofing and mechanical/electrical systems to follow.
GroundworksStructural frameBrickwork
41 Howardsgate Welwyn Garden City AL8 6AP
Class E to Sui Generis change of use with extraction and ventilation works. Commercial conversion involving kitchen extraction canopy, air supply system, roof lights and awning to front. M&E, mechanical and roofing trades required to fit specialist catering infrastructure.
M&ERoofingFit-out
Tesco Heart Building Car Park Shire Park Welwyn Garden City AL7 1TW
Padel tennis court with floodlighting at Tesco office headquarters. One court installation with associated hard landscaping and lighting infrastructure at an established commercial site. Grounds works, external lighting and sports-surface contractors will drive material supply.
Hard landscapingM&E
36 Warren Way Digswell Welwyn AL6 0DN
Two-storey side extension, rear extension, dormers and porch after demolition. Householder application involving demolition, extensions and dormer insertions on detached home. Structural works, roofing, brickwork and groundworks typical for side/rear build-out of this scale.
DemolitionGroundworksBrickwork
8 The Valley Green Welwyn Garden City AL8 7DQ
Two-storey rear extension and loft conversion with side dormer, Welwyn Garden City. Adds upper and lower floors to the rear, plus a side dormer bedroom, at full application stage. Roofing, structural steelwork, brickwork and joinery packages suit local contractors; fenestration throughout.
BrickworkRoofingGroundworks
1 The Orchard Welwyn Garden City AL8 7PL
Single-storey rear extension replacing an existing one, Welwyn Garden City. Reconfigures a ground-floor extension on an existing house at full application stage. Brickwork, roofing and groundworks suit local contractors, with glazing and joinery packages to follow.
BrickworkRoofingGroundworks
55 Wood Common Hatfield AL10 0UE
Part single, part two-storey rear extension with new side windows, Hatfield. Adds dual-height accommodation to the rear and two replacement windows at full application stage. Roofing, brickwork and glazing packages suit local installers, with groundworks and joinery for the stepped footings and…
BrickworkRoofingGroundworks
11 Woodland Rise Welwyn Garden City AL8 7LJ
Garage conversion with roof raising and new fenestration, Welwyn Garden City. Raises the flat roof to accommodate insulation, replaces windows and adds a rooflight at full application stage. Roofing, insulation and joinery packages drive the scope, with M&E and drainage needed for habitable-space…
RoofingInsulationGlazing
6 West View Hatfield AL10 0PJ
Single-storey rear extension, 6m deep, Hatfield. Prior approval for a one-storey extension under Class A permitted development, at notification stage. Brickwork, roofing, groundworks and glazing packages for local subcontractors.
GroundworksBrickworkRoofing
9 Youngs Rise Welwyn Garden City AL8 6RT
Single and two-storey rear extension with side extension. Mixed-height rear extension plus single-storey side wing, openings altered, patio added. Groundworks, brickwork, roofing and structural frame drive procurement for this mid-scale suburban retrofit.
GroundworksStructural frameBrickwork
Planning appeals in Welwyn Hatfield Borough Council
An allowed appeal is one the council lost. Some kinds of appeal succeed far more often than others, so Welwyn Hatfield Borough Council is compared with the national rate for its own mix.
Welwyn Hatfield Borough Council, raw rate
30.7%
of judged appeals were allowed
Expected for this mix of appeals
31.2%
national rates applied to this caseload
0.5 percentage points below expected. Welwyn Hatfield Borough Council's decisions are overturned less often than the national record predicts.
545 appeals counted, 521 judged either way (160 allowed, 361 dismissed), 24 judged neither way. These are appeals decided 2016-07 to 2026-06.
By kind of appeal
| Appeal type | This council | National | Cases | Judged | Allowed |
|---|---|---|---|---|---|
| Planning Appeal | 29.8% | 28.8% | 232 | 228 | 68 |
| Householder (HAS) | 31.4% | 35.6% | 225 | 220 | 69 |
| Enforcement Notice | 9.5% | 13.5% | 29 | 21 | 2 |
| Lawful Development Certificate | 50% | 36.9% | 23 | 20 | 10 |
| Listed Building Consent & Conservation Area Consent Appeal | 42.9% | 25% | 15 | 14 | 6 |
| Commercial Appeal Service (CAS) | 33.3% | 33.3% | 10 | 9 | 3 |
| Tree Preservation Order | 25% | 20.6% | 8 | 8 | 2 |
3 more appeal types with fewer than 5 judged
| Appeal type | This council | National | Cases | Judged | Allowed |
|---|---|---|---|---|---|
| Advertisement Appeal | None judged | 36% | 1 | 0 | 0 |
| Appeal against Enforcement Listed Building Notice/Enforcement Conservation Area Notice | Too few judged | 8.1% | 1 | 1 | 0 |
| High Hedges | None judged | 28.5% | 1 | 0 | 0 |
How we calculate this
Judged means allowed or dismissed. Withdrawn, invalid, split and unrecorded appeals are counted but never treated as appeals the council won. Expected applies the national rate for each appeal type to this council's own caseload. National rates by type are in The State of UK Planning.
Source: the Planning Inspectorate's Casework Database on GOV.UK, not the council's own planning register. Contains public sector information licensed under the Open Government Licence v3.0.
Money behind development in Welwyn Hatfield Borough Council
Welwyn Hatfield Borough Council's developer contribution register is not yet in SiteLens.
Affordable housing grant in Welwyn Hatfield Borough Council
What central government confirmed: schemes in the area with Homes England grant agreed.
- Social rent50 homes
- Affordable rent137 homes
- Shared ownership142 homes
Source: Homes England Affordable Homes Programme 2021 to 2026, GOV.UK transparency data, as at 31 March 2025. Contains public sector information licensed under the Open Government Licence v3.0. Grant requested is the figure when grant was confirmed, not money drawn down. Schemes are placed by local authority name.
Welwyn Hatfield Borough Council approval rates by application type
Share of decided applications approved in the last 12 months.
- other97% (59 decided)
- householder80% (46 decided)
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Map and project brief
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Constraints and tenders
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Who's behind it (Pro)
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